fix(native): match only the terminal httpConnectionFailed 404

Co-Authored-By: Claude <noreply@anthropic.com>

server/src/services/native-runtime/native-provider-failure.test.ts

@@ -68,6 +68,8 @@ describe("native provider failure observation", () => {
       [real.replace(model, "other-model"), undefined, false],
       [real, { httpConnectionFailed: { httpStatusCode: 500 } }, false],
       [real, "other", false],
+      // Codex reports its retried 404s with this kind and willRetry; they never end the turn.
+      [real, { responseStreamDisconnected: { httpStatusCode: 404 } }, false],
       [real, undefined, true],
     ] as const) {
       const other = observation();

server/src/services/native-runtime/native-provider-failure.ts

@@ -266,8 +266,8 @@ export function createNativeProviderFailureObservation(provider: { kind: string;
       // terminal text (codex 0.160.0). Bind it to the configured model; store neither name nor text.
       const info = record(failure.codexErrorInfo);
       const infoKinds = Object.keys(info);
-      if (infoKinds.length === 1 && ["httpConnectionFailed", "responseStreamDisconnected"].includes(infoKinds[0]!) &&
-          record(info[infoKinds[0]!]).httpStatusCode === 404 &&
+      // Its retried 404s arrive as responseStreamDisconnected with willRetry; only the terminal kind counts.
+      if (infoKinds.length === 1 && infoKinds[0] === "httpConnectionFailed" && record(info.httpConnectionFailed).httpStatusCode === 404 &&
           failure.message.startsWith(`unexpected status 404 Not Found: The model \`${provider.model}\` does not exist or you do not have access to it.`)) {
         missingModelTurnId = event.turnId;
         return;